Windows App SDK documentation (external site)
Microsoft's reference and conceptual documentation for the Windows App SDK and WinUI 3.
Learning resources
Documentation, samples, videos and communities worth your time, grouped by how strongly we recommend them.
Essential
Start with these.
Recommended
Worth knowing about for most projects.
Windows App SDK samples (external site)
Official sample apps covering app lifecycle, notifications, windowing, deployment and more.
Situational
Useful for specific needs.
Windows App SDK discussions (external site)
GitHub Discussions for asking questions and following design conversations with the Windows App SDK team.